Heated Glass Element: Description and Operation

The heated rear window relay supplies power to heated rear window grid. Circuit F83 from fuse 8 in the fuse 8 in the fuse block supplies power to the heated rear window relay when the ignition switch is in the ACCESSORY or RUN positions.

When the operator depresses the heated rear window switch the contacts inside the switch momentarily close and circuit C80 connects the switch to the relay. This causes the relay to change state and complete a circuit to energize the coil side of the relay and start the relay timer.

Circuit F81 from fuse 18 in the fuse block supplies voltage to the coil and contact sides of the relay. Circuit Z1 provides ground for the relay.

When the heated rear window relay energizes, the contacts inside the relay close and connect circuit F81 to circuit C15. Circuit C15 splices to the power the heated rear window grid and the indicator lamp in the heated rear window switch. Circuit Z1 provides ground for the heated rear window grid.